ABIGAIL / Regexp-Sudoku-2022062101 / t / sudokus / german_whisper-2 
. . .  . 1 .  . . .
. 5 .  . . .  . . .
. . .  . . .  . . .

. . .  . . .  . . .
6 . .  . . .  . . 9
. . .  . . .  . . .

. . 3  . . .  . . .
. . .  . . .  . 3 .
. . .  . 3 .  . . .
==
Solution
7 9 6  4 1 3  8 5 2
3 5 2  6 8 9  4 1 7
1 8 4  2 7 5  6 9 3

2 4 7  5 9 1  3 8 6
6 1 5  3 4 8  2 7 9
8 3 9  7 6 2  5 4 1

9 2 3  8 5 7  1 6 4
4 7 8  1 2 6  9 3 5
5 6 1  9 3 4  7 2 8
==
Create
Regexp::Sudoku:: -> new -> init
                 -> set_german_whisper (qw [R6C3 R5C2 R4C3 R3C4 R2C5 R1C6
                                            R1C7 R2C8 R3C8 R4C7 R5C6 R6C6
                                            R7C6 R8C5 R7C4])
                 -> set_german_whisper (qw [R5C8 R6C9 R7C8 R7C7 R8C7 R9C6])
                 -> set_german_whisper (qw [R8C1 R7C1 R7C2 R8C3 R9C3 R9C2])
                 -> set_german_whisper (qw [R4C5 R4C6 R3C7])
==
Name: German Whispers Sudoku
URL: https://www.youtube.com/watch?v=nH3vat8z9uM